Foundations of Astronomy (MindTap Course List)
14th Edition
ISBN: 9781337399920
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
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Textbook Question
Chapter 23, Problem 19RQ
How can small worlds like Triton and Pluto have atmospheres whereas a larger world such as Ganymede has none?
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Which of these is an example of an energy source that could exist on Europa (or beneath its surface) and help enable life in a Europan ocean?
a Volcanoes and/or hydrothermal vents on the seafloor
b Solar flares from the Sun that penetrate Europa's ice and send radiation into the liquid-water ocean
c Europa's rapid motion as it orbits Jupiter
d The combustion of fossils fuels beneath the surface, similar to burning coal in the Earth's crust
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formation of the planets?
NASA Scientists want to measure the current distance between two of
Jupiter's Moons, Ganymede and Europa. They set up a laser on the surface of
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long it takes for the laser light to return to a detector on the surface of
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be 787 million meters. How long did it take the light to make it to Europa and
back?
*Give answers to at least three significant figures. DO NOT submit answers
in scientific notation. Use symbols for units (i.e. m, s, kg, N)*
Chapter 23 Solutions
Foundations of Astronomy (MindTap Course List)
Ch. 23 - Why didnt ancient astronomers know of Uranuss...Ch. 23 - Describe the location of the equinoxes and...Ch. 23 - When during Uranuss seasonal cycle does every...Ch. 23 - How were the rotation periods of Uranus and...Ch. 23 - Why is belt-zone circulation difficult to detect...Ch. 23 - Prob. 6RQCh. 23 - Prob. 7RQCh. 23 - Describe four characteristics in common among all...Ch. 23 - Describe four differences between the two ice...Ch. 23 - Prob. 10RQ
Ch. 23 - What are hypotheses for the origin of the rings of...Ch. 23 - How do the characteristics of Uranuss and Neptunes...Ch. 23 - If Uranus and Neptune had no satellites at all,...Ch. 23 - Why might the surface brightness of ring particles...Ch. 23 - Both Uranus and Neptune have a blue-green tint...Ch. 23 - How are the atmospheres of Earth and Triton...Ch. 23 - Prob. 17RQCh. 23 - When Neptune was discovered, how was its position...Ch. 23 - How can small worlds like Triton and Pluto have...Ch. 23 - Why do you suspect that Triton had a geologically...Ch. 23 - If you visited the surface of Pluto and found...Ch. 23 - What evidence can you give that Pluto and Charon...Ch. 23 - Why was Pluto reclassified as a dwarf planet?Ch. 23 - How was the discovery of Neptune not accidental?Ch. 23 - What is the maximum angular diameter of Uranus as...Ch. 23 - One way to recognize a distant planet is by...Ch. 23 - What is the orbital velocity of Miranda around...Ch. 23 - Calculate Uranuss Roche radius. Are all of Uranuss...Ch. 23 - Prob. 5PCh. 23 - What is the escape velocity from the surface of an...Ch. 23 - What is the difference in the orbital velocities...Ch. 23 - Repeat Problem 2 for Pluto. In other words,...Ch. 23 - Given the size of Tritons orbit (r = 355,000 km)...Ch. 23 - Uranus is about 26,000 km in radius, and its main...Ch. 23 - Neptune is about 50,000 km in diameter, and its...Ch. 23 - Prob. 1LTLCh. 23 - Prob. 2LTLCh. 23 - Compare the interior cutaway sketches of the four...Ch. 23 - Prob. 4LTLCh. 23 - Review Figure 21-11. Which molecules can Triton...Ch. 23 - The image to the left shows how Uranus would look...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- Look at Figure 21-11. Which molecule(s) can escape from Earths gravity? From Mars? From Venus? Figure 21-11 Loss of atmospheric gases. Dots represent the escape velocity and temperature of various Solar System bodies. The lines represent the typical highest velocities of molecules of various masses. The Jovian planets have high escape velocities and can hold onto even the lowest-mass molecules. Mars can hold only the more massive molecules, and the Moon has such a low escape velocity that even massive molecules can escape.arrow_forwardReview Figure 21-11. Which molecules can Triton retain in its atmosphere? Figure 21-11 Loss of atmospheric gases. Dots represent the escape velocity and temperature of various Solar System bodies. The lines represent the typical highest velocities of molecules of various masses. The Jovian planets have high escape velocities and can hold onto even the lowest-mass molecules. Mars can hold only the more massive molecules, and the Moon has such a low escape velocity that even massive molecules can escape.arrow_forwardPresent theory suggests that giant planets cannot form without condensation of water ice, which becomes vapor at the high temperatures close to a star. So how can we explain the presence of jovian-sized exoplanets closer to their star than Mercury is to our Sun?arrow_forward
- The water clouds believed to be present on Jupiter and Saturn exist at temperatures and pressures similar to those in the clouds of the terrestrial atmosphere. What would it be like to visit such a location on Jupiter or Saturn? In what ways would the environment differ from that in the clouds of Earth?arrow_forwardHow did the giant planets grow to be so large?arrow_forwardWould you expect to find free oxygen gas in the atmospheres of the giant planets? Why or why not?arrow_forward
- In the context of the giant planets and the conditions in their interiors, what is meant by “rock” and “ice”?arrow_forwardWhich one of the mechanism below can NOT be responsible for providing intrinsic luminosity for planets? Gravitational settling of the hydrogen molecules. Gravitational settling of the helium atoms. Residual heat dating from the formation epoch of the planets. Decay of radio-active isotopes like uranium.arrow_forwardCompare Titan to Rhea. Estimate the strength of surface gravity on Titan compared to the gravity on Titan. How does this affect the possibility of an atmosphere on each? Use g=GM/R2 Titan Radius: 2,575 km, Mass: 2.31 x 1021 kg Rhea Radius: 764 km, Mass: 1.35 x 1023 kgarrow_forward
- Which of these things did the Voyager spacecraft discover about Enceladus in the early 1980s, indicating that it is somewhat unusual among planetary bodies in our solar system? Check the TWO items that apply. a It has a thick atmosphere, made mostly of nitrogen. b It has the darkest, least reflective surface of all the known planetary bodies. c It is the brightest (i.e. most reflective) object in the solar system. d The entire surface is more heavily-cratered than any other body in our solar system. e Its surface is very smooth in some places.arrow_forwardWhat is the range of density for the outer planets (in g/cm3)? 1.2 to 5.5 2.2 to 5.5 2.2 to 6.5 3.3 to 7.2 none of thesearrow_forwardAccording to the chart below, how do the gas giants differ from the terrestrial planets? THE TERRESTRIAL PLANETS THE GAS GIANTS MERCURY MARS JUPITER SATURN URANUS NEPTUNE VENUS EARTH ROCK ROCK ROCK ROCK INNER CORE INNER CORE CORE SIren/ Nickel CORE Iron/ WATER WATER WATER Nickel OUTER CORE OUTER CORE METALLIC U HYDROGEN METALLIC WATER MANTLE Reck HYDROGEN MANTLE Rock MANTLE Reck CORE SIren/ Silicates Silicates Silicates Nickel HYDROGEN GAS HYDROGEN GAS HYDROGEN HYDROGEN GAS GAS SURFACE SURFACE SURFACE SURFACE O The gas giants do not have solid surfaces. O The gas giants have an iron core. O The gas giants lack hydrogen gas. O The gas giants do not contain water.arrow_forward
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